Speed cameras in the United Kingdom

Road speed limit enforcement in the United Kingdom is the action taken by appropriately empowered authorities to attempt to persuade road vehicle users to comply with the speed limits in force on the UK's roads. Methods used include those for detection and prosecution of contraventions such as roadside fixed speed cameras, average speed cameras, and police-operated LIDAR speed guns or older radar speed guns. Vehicle activated signs and Community Speed Watch schemes are used to encourage compliance. Some classes of vehicles are fitted with speed limiters and intelligent speed adaptation is being trialled in some places on a voluntary basis.

During 2006/7 a total of 1.75 million drivers had their licenses endorsed with 3 penalty points and £114 million was raised from fines; an 'e-petition' to ban speed cameras during 2007 received 28,000 signatures. The Department for Transport estimated that cameras had led to a 22% reduction in personal injury collisions and 42% fewer people being killed or seriously injured at camera sites. The British Medical Journal recently reported that speed cameras were effective at reducing accidents and injuries in their vicinity and recommended wider deployment.

In May 2010 the new Coalition government pledged to scrap public funding for speed cameras and cut the Road Safety Grant from £95 million to £57 million. Opposition politicians and some road safety campaigners claimed that lives were being put at risk. A survey conducted by The Automobile Association said that use of speed cameras was supported by 75% of their members.

Enforcement is used to increase compliance with speed limits.

One of the main motivations for enforcement is to reduce road casualties, particularly at accident blackspots. For 2008, "exceeding the speed limit" was reported as one of the contributory factors in 5% of all casualty collisions (14% of fatal collisions resulting in 15% of all deaths).

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